Diagnostic Routines
WARNING: This page is about a different car, the 2007 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC ROUTINE - FLUID LOSS
| Possible Component | Reference/Action |
|---|---|
| Vent | CLEAN the axle vent and vent hose. |
| Overfilled axle | CHECK the lubricant level for specific amount. |
| Fill plug | CLEAN the area around the plug. REMOVE the plug. APPLY pipe sealant and INSTALL the plug. |
| Halfshaft oil seal | INSTALL a new halfshaft oil seal. |
| Pinion seal | INSTALL a new pinion seal. |
| Differential housing cover | RESEAL the differential housing cover. |
DIAGNOSTIC ROUTINE - NOISE LOUDER ON TURNS (SWEEPING)
| Possible Component | Reference/Action |
|---|---|
| Wheel end bearing | CHECK the wheel end bearing for wear or damage. INSTALL a new bearing. |
DIAGNOSTIC ROUTINE - NOISE (GROWL) IN TIGHT TURN, CONVENTIONAL DIFFERENTIAL
| Possible Component | Reference/Action |
|---|---|
| Differential side gears and differential pinion gears | DISASSEMBLE the differential carrier. INSPECT the differential case assembly. INSTALL new side gears and differential pinion gears or case assembly. |
DIAGNOSTIC ROUTINE - NOISE (WHINE) IN ALL OR MORE THAN ONE DRIVE MODES
| Possible Component | Reference/Action |
|---|---|
| Axle ring and pinion | REMOVE and INSTALL a new gear set and bearings. |
DIAGNOSTIC ROUTINE - NOISE (TICK/CLICK) IN ALL OR MORE THAN ONE DRIVE MODES
| Possible Component | Reference/Action |
|---|---|
| Axle ring and pinion | REMOVE and INSTALL a new ring gear, pinion and bearings. |
DIAGNOSTIC ROUTINE - NOISE (HOWL/MOAN) IN ALL OR MORE THAN ONE DRIVE MODES
| Possible Component | Reference/Action |
|---|---|
| Axle bearings | INSPECT differential and pinion bearings. INSTALL new bearings. |
DIAGNOSTIC ROUTINE - NOISE (CLUNK) ON CHANGES IN SPEED OR DIRECTION OF POWER
| Possible Component | Reference/Action |
|---|---|
| Axle and pinion system | MEASURE total backlash. If end play and total backlash are within specification, INSTALL a new differential case assembly. |
| Differential pinion shaft | INSTALL a new differential pinion shaft and pin. |
| Pinion bearings | INSTALL new pinion and differential bearings and bearing cups. |
DIAGNOSTIC ROUTINE - FRONT AXLE WILL NOT ENGAGE/DISENGAGE
| Possible Component | Reference/Action |
|---|---|
| Mode switch Wiring Shift motor |
REFER to FOUR WHEEL DRIVE (4WD) SYSTEMS . |
DIAGNOSTIC ROUTINE - VIBRATION
| Possible Component | Reference/Action |
|---|---|
| For driveline vibration, REFER to NOISE, VIBRATION AND HARSHNESS . | |